Electrical engineer's pocket-book: a hand-book of useful data for electricians and electrical engineers (1901)
Foster, Horatio A. (Horatio Alvah), 1858-1913 · New York, D. Van Nostrand co.; London, E.& F.N. Spon, ltd. · leaf 371
it. Economy Coils or Compensators. A modification of the above is built by several companies for use on ordi-nary low potential circuits, where it is desired to run two or three arclamps. It is a single coil transformer, and is shown in Fig. 20, and diagram-matically in Fig. 21, same page. If any… … Fig. 20. Westinghouse Econ-omy Coil. For A.C. arc lamps- Fig. 21. Arrangement of Apparatus foruse of Economy Coil or Compensator. the remaining lamps receive less current, and it is necessary to replace thebad lamps in order to obtain normal current through the circuit. Transformers for Constant…
Electrical engineering
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